Anadarko started the initial development and qualification of 20 ksi equipment in 2013 for a Gulf of Mexico (GoM) project. That journey included an analysis of using depth-adjusted working pressure of 15 ksi equipment that allowed exploration and appraisal drilling of a high-pressure GoM prospect. It continued with the goal to develop and qualify a complete set of 20 ksi equipment for a deepwater GoM high-pressure development. The scope of development and qualification of High-Pressure, High-Temperature (HPHT) equipment included: 20 ksi deepwater Mobile Offshore Drilling Unit (MODU); 20 ksi subsea Blowout Preventer (BOP); 20 ksi Completions equipment for the upper completion including a subsurface safety valve, packers, chemical injection, wireline plugs, etc.; 20 ksi Intervention equipment including a thru-riser intervention string, a Tree Tieback Tool, workstring connection and an Integrated Workover Control System (IWOCS); 20 ksi Subsea Production equipment including wellhead, tree and a High Integrity Pressure Protection System (HIPPS). Anadarko formed the ‘20A project team’ initiative in order to qualify these critical deepwater components with a Rated Working Pressure (RWP) greater than 15 ksi. This project is coming to a close in 2019, with the qualification of over 200 components and assemblies to industry standards and meeting U.S. government requirements. This six year development journey of 20 ksi equipment development and qualification presented challenges and achieved breakthrough technologies for the industry. This journey, its organizational approach using systems engineering techniques and integration processes are presented.
Beginning in August 2013, Anadarko Petroleum formed the “20A Project Initiative” for qualifying 20 ksi equipment for a Deepwater Gulf of Mexico (GoM) development. This paper will cover the systems approach used for the qualification (verification, validation and quality) of a system of components, including sub-assemblies and assemblies that are required for a 20 ksi development. The systems approach begins with the framework and management of this framework inside the overall development process. The systems approach categorizes each component by mode of operation (many pieces of equipment are used in multiple operational modes). These modes of operation are Drilling, Completions, Production and Intervention, and are the engineering systems used to manage the qualification of over 200 components to industry standards and U.S. government requirements. The functional requirements for each component are defined and vendors selected. Each component is then stewarded through a project-management process for design, verification, validation and quality. This process culminates with the integration of these components back into a system that can be qualified for use in an HPHT environment. This paper addresses the submittal to regulatory authority for approval to use the newly developed and qualified 20 ksi equipment for a deepwater GoM development. This project ends in 2019. This six-year development journey presented challenges and achieved breakthrough technologies for the industry. This journey, its organizational approach using systems engineering techniques and integration processes are presented.
The evolution of subsurface safety valve design for HPHT application has created the need for advanced design verification and validation testing to ensure "fit-for-service" application in a HPHT environment. With the release of API 14A 12th edition and the new V-1H validation grade, couple with Annex H for verification and validation requirements for high-pressure, high temperature environment, strenuous validation testing is required. Navigating the requirements can be difficult with the divergence from API 14A 11th Edition, Class 1, 2, 3, & 4 classes of service, to API 14A 12th Edition, V4-1 to V1-H. In addition to the validation grades, specialized Annexes (D, G, H, J, and L) requires collaboration between the Operator, with its functional specifications, and the service company to develop a specific design verification and validation testing program for Subsurface Safety Valves suitable for HPHT application. This paper specifies a "fit-for-service" verification and validation plan conducted collaboratively by an Operator and Supplier. The validation testing plan outlines the requirement for V1-H validation grade along with required API 14A Annex testing. The paper also includes details on metallic component analysis using finite element analysis (FEA) and current ASME BPVC Section VIII using true-stress true-strain curves for accurate verification of the equipment design. Localized stress discontinuities and plastic localized yielding design criteria were also used to determine adequate protection against these failure modes, or if additional analysis is required. With increasing regulatory oversight in HPHT technology development, product qualification planning requires in-depth knowledge of the designs and the criticality of the Subsurface Safety Valve as a critical barrier component. The Supplier and an Operator would like to share their experience and lessons-learned with the industry that would enable industry engineers to understand the requirements of design verification and validation testing of Subsurface Safety Valves for "fit-for-service" in a HPHT environment.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.